The purpose of this pilot study is to compare the time it takes to change a breathing tube with a new device, performed by two different groups of anesthesiologists; one group will study on their own how to change the tube, while the second group will also receive expert training, before either group performs the procedure for the very first time. The Investigators predict the group who gets expert training will change the tube faster, and those investigators also need to learn how much faster, before moving to a larger study.